Question

1) There is a rectangle of sides 5cm and 4cm

a) What is the area of this rectangle?

b) What is the perimetre of this rectangle?

c) Give the integer side lengths of another two rectangles with the same area

d) What is the length of its diagonal?

e) What is the area of the triangle made by a diagonal and two sides.​

Answer 1

Answer:

The area of the rectangle is 5 cm×4 cm =20sq.cm.

the perimeter of the rectangle is 2(5+4)cm = 18cm.

the length of the rectangle s diagonal is √(5)^2 + (4)^2 = √41

Answer 2

Answer:

1) 20 cm^2

2) 18 cm

3) 1.    7 cm & 2 cm

   2.   6 cm & 3 cm

4) 39^1/2 cm (root of 39 cm)

5) 10 cm^2